Brake for single-track railways.



No. 679,676. 'Patented July so, wol. L. m. Hosen.

BRAKE FOB SINGLE TRACK RAILWAYS.

(Application hd Ich. 21', 1901.) (No Nudel.)

Izzz/en for.

TME NoRRls PTERS CO FNOTO-LITHD. WSHINGTON D l.

STATES PATENT Enron..

LEWIS M. HOSEA, OF CINCINNATI, OHIO, ASSIGNOR, BY MESNE ASSIGN- MENTS,TO CRAVLEY SCENIC AND PLEASURE RAILWAY COMPANY, OF

SAME PLACE.

BRAKE FOR SINGLE-TRACK RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 679,676, dated July 30,1901.

Application filed February Z1, 1901. Serial No. 48,223. (No model.)

Ton/ZZ whom it may concern:

Beit known that I, LEWIS M. HosEA, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented new and useful Improvements in Brakes for Single-TrackRailways, of which the following is a specification.

My invention has relation to single-track railways wherein guard-railsare employed 1o with suitable guard-wheels upon the car or itsrunning-gear to maintain the equilibrium of the car and preventderailment, its object being to provide a suitable brake adapted to,

control the speed and movement of the car I5 under all circumstances ofuse, thereby facilitating the proper use and enhancing the safety ofsuch service.

To this end my invention consists in a trailing brake adapted when inuse to bear downzo ward against the main bearing-rail with adj ustableforce in frictional contact, and thus retard or stop the motion of thecar without possibility of locking or skidding the bearing orguardwheels, and also is the means z5 of operating said brake whereby saidoperation is brought conveniently within reach of the operator forinstant and effective use.

My invention is illustrated in the accompanying drawings, in which- 3oFigure lis aside elevation of the brake and its immediate connections,showing a hand-lever employed as the means of operation; Figs. 2 and 3,a plan view and a rear elevation, respectively, of the bearing-wheel ofthe truck or car, showing the construction and mode of attachment of thetrailing brake and in Fig. 3 showing the relation of the guard-rails andwheels thereto; Fig. 4, a plan view showing the hand-lever andconnection thence to 4o the bell-crank lever for operating thebrakeshoe. Fig. 5 is a side elevation of the brake, showing ascrew-shaft applied as the means of operating the same; and Fig. 6 adetail showing the attachment of the screw-shaft to the brake-shoe withprovision for an interposed spring.

Referring now to the drawings in and of the subjoined description, itshould be premised that the illustrations show the brake applied toaform of running-gear in which a bearing- 5o Wheel is attached to thecar B through the medium of aswiveling truck A, but that the brakeapparatus hereinafter described is not limited in its application tothis structure,

but is equally applicable to those in which Y the bearing-wheel is madea direct and integral part of the car-body or to a two-wheel truck inwhich the wheels are arranged tandem.

The truck A shown in the present case is 6o annular and arranged toswivel in bearings a upon the frame of the car, like the fifthwheel of awagon in order that the wheels may be adjusted to the radii of curvatureof the track by means not necessary to illustrate here.

The brake itself is a shoe c, preferably of cast metal, attached to andbetween the termini of two trailing arms d d, hung upon the axle-bar a/of the bearing-wheel W at either 7o side of said wheel. In theillustrations the shoe c is formed with a dorsal llange C, to andthrough which the arms d are bolted.

Two modes ot' operating the shoe upon the track are shown. In Figs. 1,2, 3, and 4t the 75 arms d are extended by extensions y, the portions dy constituting a bell-crank lever pivoted upon the axle a', to the upperextremity of which bell-cranks are articulated two connecting-rods sr,extending and attached to a 8o hand-lever L, pivoted upon the swivelingtruck A.

In the class of railways to which theinvention is applied the truck orcar is provided with laterally-projecting studs upon which are pivotedwheels w, operating beneath guide-rails r, arranged at the sides of thecentral track-rail R. In the illustrations the guard-wheels w arecarried at the outer termini of the axle d and the guide-rails fr' ar-9o ranged correspondingly.

It will be seen that on operating the lever L, Fig. l, to the right orbackward the bellcrank lever d d presses the brake-shoe C downward uponthe track R. Under ordinary conditions the force applicable would belimited by the weight of the car; but in the present case the forceapplicable is not so limited, since any tendency to lift the car fromthe bearing-rail R is directly resisted by upward contact of theguard-wheels w with the guard-rails r.

In Fig. 5 in lieu of the leverL and the bellcrank extensions d andconnections :12, above described, I substitute a screw-shaft f,operating through a screw-socket g, attached to the truck A and bearingagainst the shoe C. I may also employ a spring-buer s, interposedbetween the end of the screw-shaft f and the brake-shoe C. A practicableconstruction of this is shown in Fig. 6, in which a spring-casing s isemployed, having at the bottom a tongue t, projecting downward betweenthe arms d and pivotally connected therewith in an opening or centralrecess in the dorsal flange c, which is likewise bolted to the arms d.'Phe pivotal connection of the spring-casing s with the shoe and apivotal connection of the screw-socket g with the swiveling truck Apermit the shaftf to accom modate itself to the slight change ofposition, due to the arc of movement of the brake-shoe C, held by itspivotal trailing arms d d.

I claim as my invention and desire to secure by Letters Patent oftheUnited Statesl. In a single-rail railway system having guard Wheelsbearing upwardly against guard-rails, a track-brake consistingessentially of a shoe attached to trailing arms pivoted to the truck orcar body, adapted to trail behind the wheels and means connected with67eme the car or truck operating to force the shoe intofrictionalcontact With the bearing-track, substantially as set forth.

2. In combination with a wheel-truck, a bell-crank lever pivotallycarried upon the wheel-axle or extensions thereof, so that one 4o arm ofthe lever trails behind the wheel; a shoe attached to the rear terminalof said 1ever, and a hand-lever pivoted upon the truck or car inconnection with the opposite terminal of the bell-crank by the operationof which the shoe is forced into frictional contact with the mainbearing-rail, substantially as set forth.

3. In a track-brake of the character indicated, the combination of ahand-lever piv- 5o oted to the swiveling-truck frame, two straps orconnecting braces pivoted to the same at opposite sides, two bell-cranklevers upon the wheel-shaft at opposite sides of the bearing- Wheel withupper arms projecting upwardly and connecting with the aforesaid straps;and lower arms projecting rearwardly beyond the Wheel, and a brake-shoeadapted to the contour of the track, carried by and between the rearterminals of the bell-crank lever, sub- 6o stantially as set forth.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

` LEWIS M. HOSEA. Witnesses:

WALTER A. KNIGHT, KATE E. BoDINE.

